Baby rash depends on what type of rash it is. The most common type of rash in babies is eczema, which has very many causes and is related to the mother’s diet, such as when she drinks fish soup, shrimp soup or seafood soup. So babies who get this kind of rash need their mothers to avoid eating and eat lightly. Most of the baby’s eczema is transient, after the acute phase, will soon subside, and will become less and less after 1 year old, may still be related to the baby’s immune function is not well developed. So for babies who have this tendency within the age of 1, the mother’s diet needs to be abstinent, and the diet should be light. Pork feet soup is fine to drink, but seafood soup and fish soup are to be noted.